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https://www.youtube.com/watch?v=8beXC2I0Zoo
Fearsome vampire fish take over UK rivers with record numbers of the metre-long monsters
Swimmers are on red alert after a rise in
the number of a one-metre blood-sucking fish
in Britainâ™s rivers. The lamprey, which
had rows of razor-sharp teeth, is known to
attack humans when hungry, and numbers are
rocketing around the UK. Record numbers were
recently recorded in the Great Ouse, Trent,
Derwent and Wear.
The rise in the âœvampire fishâ - which
kill off other fish by latching onto them
and sucking their blood out - has been flagged
up on outdoor swimming websites where members
swim in rivers and lakes. The Swimmerâ™s
Daily website carried a report into the rise
of the lampreys on May 18, warning swimmers
âœReturn of the lamprey - ancient, ugly and
swimming up Britainâ™s riversâ. Outdoor
swimmers are now âœkeeping an eye outâ
for the blood-sucking creatures - which are
known to attack humans if they are starving
- during dips in rivers.
The numbers of lampreys - which have been
around for 360 million years and have a permanently
open mouth armed with a powerful sucker and
rows of razor-sharp teeth - in the UK have
shot up in recent years. Numbers had been
dwindling after man-made barriers to alter
the flow of the water, called weirs, prevented
them from swimming upstream to their breeding
grounds, where females lay around 170,000
eggs at a time.
Mark Owen, head of freshwater at the Angling
Trust, said last week that âœfish passesâ
allow lampreys - and other types of fish like
eels, salmon and sea trout - to get through
weirs had helped boost numbers. He said: âœThe
fact theyâ™re coming back indicates the water
quality is improving, which is welcome for
all fish species. âœThereâ™s a policy now
of having fish passes in man-made weirs, like
a bypass channel for them to go through.
Bosses at the Environment Agency confirmed
that fish migration had vastly improved over
the past four years, with 12,500 miles of
Englandâ™s river âœopened upâ so fish
like lampreys, eels, salmon and sea trout
could get to breeding grounds further up river.
A spokesman revealed on Saturday (May 21)
that 200 obstructions had been overcome in
various rivers around the UK, with weirs removed
and âœfish passes installedâ, allowing
fish to multiply. The spokesman said: âœAlmost
200 obstructions have been overcome - this
means fish passes installed or weirs removed.
âœMigration is important because many species
of fish need to migrate to reproduce, feed
and complete their life cycles. âœWeir removals
and fish passes create â˜fish highwaysâ™
making a faster, easier route from the sea
right up to the upper reaches of rivers.
âœThis work benefits coarse fish that spend
their entire lives in the river, as well as
the species that migrate between the river
and the sea.â Sarah Chare, Head of Fisheries
at the Environment Agency, said: âœAfter
considerable investment, rivers in England
are the healthiest for 20 years.
âœThis is down to more than a decade of hard
work to improve the health of Englandâ™s
rivers. âœBut there is more to do and opening
up our rivers to help fish migrate is a crucial
part of this.â Lampreys are a protected
species in the UK, after once being considered
a great delicacy among royalty and the rich.
In 1135 Henry I is reported to have died after
eating a âœsurfeit of lampreysâ - although
the more likely explanations is that he died
from food poisoning.
https://www.youtube.com/watch?v=t8Kh9xcI7vs
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